diff options
Diffstat (limited to 'Modules/_io/_iomodule.c')
| -rw-r--r-- | Modules/_io/_iomodule.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/Modules/_io/_iomodule.c b/Modules/_io/_iomodule.c index eb701d4..9866fbe 100644 --- a/Modules/_io/_iomodule.c +++ b/Modules/_io/_iomodule.c @@ -126,8 +126,7 @@ PyDoc_STRVAR(open_doc, "'b' binary mode\n" "'t' text mode (default)\n" "'+' open a disk file for updating (reading and writing)\n" -"'U' universal newline mode (for backwards compatibility; unneeded\n" -" for new code)\n" +"'U' universal newline mode (deprecated)\n" "========= ===============================================================\n" "\n" "The default mode is 'rt' (open for reading text). For binary random\n" @@ -143,6 +142,10 @@ PyDoc_STRVAR(open_doc, "returned as strings, the bytes having been first decoded using a\n" "platform-dependent encoding or using the specified encoding if given.\n" "\n" +"'U' mode is deprecated and will raise an exception in future versions\n" +"of Python. It has no effect in Python 3. Use newline to control\n" +"universal newlines mode.\n" +"\n" "buffering is an optional integer used to set the buffering policy.\n" "Pass 0 to switch buffering off (only allowed in binary mode), 1 to select\n" "line buffering (only usable in text mode), and an integer > 1 to indicate\n" @@ -310,6 +313,9 @@ io_open(PyObject *self, PyObject *args, PyObject *kwds) "can't use U and writing mode at once"); return NULL; } + if (PyErr_WarnEx(PyExc_DeprecationWarning, + "'U' mode is deprecated", 1) < 0) + return NULL; reading = 1; } |